Planar optical waveguides in Bi4Ge3O12 crystal fabricated by swift heavy-ion irradiation
Planar optical waveguides in Bi4Ge3O12 crystal fabricated by swift heavy-ion irradiation
Yang, J.; Zhang, C.; Chen, F.; Akhmadaliev, S.; Zhou, S.
We report on the fabrication of the planar waveguides in the Bi4Ge3O12 crystal by using 17 MeV C5+ or O5+ ions at a fluence of 2×1014 ions/cm2. The reconstructed refractive index profiles of the waveguides produced by either C5+ or O5+ irradiation are the “well” + “barrier” pattern distribution. The two-dimensional modal profiles of the planar waveguides, measured by using the end-coupling arrangement, are in good agreement with the simulated modal distributions. After thermal annealing treatment at 260°C for 30 min, the propagation loss for C5+ and O5+ irradiated waveguides could be reduced down to ~1.1 dB/cm and ~4.8 dB/cm, respectively, which exhibit acceptable guiding qualities for potential applications in integrated optics.
Keywords: Integrated optics devices; Waveguides
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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Cited 15 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-15969